ThermoFlex-Manual - 第95页
Thermo Scientic ThermoFlex 7-7 Section 7 Er ror Code Reaction Cause Actions Er 22 This er ror code has priority ov er H iT . Chiller will shut down. Note Chiller will not restart until process uid temperature is below …
Thermo Scientic ThermoFlex 7-6
Section 7
Error Code Reaction Cause Actions
rEFiL
Auto rell will shut off.
Chiller reaction depends
on ALr setting chosen in
the Setup Loop, see Sec-
tion 4.
Auto rell will shut off.
Chiller will continue to
run.
(Optional display.)
The uid level did not reach
the minimum operating level
within the time chosen for the
customer adjustable ll setting,
chosen in the Setup Loop, see
Section 4.
The auto rell successfully lled
within the time frame chosen
for the customer adjustable ll
setting, but the chiller tried to
rell 5 times in 40 hours.
•Check auto rell connection.
•Check for leaks.
• Check the supply pressure on the auto rell supply line. With low
pressure the auto rell time span setting may be set too low and
the reservoir does not have time to ll.
•Check rEFil settings and adjust if necessary, see Section 4.
SEr 1
Chiller will continue to
run.
Periodic service may be required. •To clear the message see Section 8.
Er 4
Chiller will not start. Normal if new software installed
and all values in the Setup
and Tune Loops were reset to
factory defaults.
•Clear the error code.
Er 15
Chiller will continue to
run.
(Chiller equipped with
serial communications.)
Momentary disruption of the
internal communications to
control board.
•Clear the error code
Check the serial communication connection.
•See serial communication connections in Appendix D.
Er 16
Chiller continues to run. Bad sensor calibration detected
several seconds after performing
a calibration.
•Redo calibration, see Section 8.
Thermo Scientic ThermoFlex 7-7
Section 7
Error
Code
Reaction Cause Actions
Er 22
This error code has
priority over H iT.
Chiller will shut down.
Note Chiller will not
restart until process
uid temperature is
below +43°C.
Reservoir uid temperature
exceeded the factory preset
value of +43°C.
•Ensure the chiller meets all environmental requirements, see Section 3.
• Clean the air lter. Dirt and debris on the lter can prevent the
chiller from functioning at full capacity, see Section 6.
• Ensure that the heat load being applied to the chiller is not too high.
Contact Thermo Fisher for assistance on calculating heat loads.
•Bring cooler air in from another area or exhaust the hot air into
another location using an auxiliary fan.
•Verify/adjust controller PID values, see the end of this section.
Er 23
Chiller will shut down. Refrigeration temperature
sensor shorted.
•Contact our Sales, Service and Customer Support.
Er 24
Chiller will shut down. Refrigeration temperature
sensor open.
•Contact our Sales, Service and Customer Support.
Er 25
Chiller will shut down. Internal temperature sensor
shorted.
•Contact our Sales, Service and Customer Support.
Er 26
Chiller will shut down. Internal temperature sensor
open.
•Contact our Sales, Service and Customer Support.
Er 28
Chiller continues to
run.
The process uid resistivity
exceeded the lower adjustable
value.
•Press enter to see if the code clears, the limit may have been only
temporarily exceeded.
•Verify controller’s settings, see Section 4
•Replace process uid.
Er 30
Chiller continues to
run.
The process uid resistivity
exceeded the higher
adjustable value.
•Press enter to see if the code clears, the limit may have been only
temporarily exceeded.
•Verify controller’s settings, see Section 4
•Replace process uid.
Er 32
Chiller will shut down. Refrigeration suction gas
temperature exceeded 50°C.
•Make sure supply voltage matches the chiller’s nameplate rating ±10%.
Thermo Scientic ThermoFlex 7-8
Section 7
Error Code Reaction Cause Actions
Er 33
This error code has priority
over L oT.
Chiller will shut down.
Note Chiller will not
restart until process uid
temperature exceeds +2°C.
Reservoir uid temperature
below the factory preset value
of +2°C.
• Check ambient temperature. Chiller may not to be able to reach
setpoint at low ambient temperatures.
• Ensure that the ambient temperature is not exceeding the
recommended range, see Section 3.
•Verify/adjust controller PID values, see Section 7.
• Add insulation to external plumbing lines to reduce the heat-loss
to the environment.
•For water-cooled chillers check facility water temperature.
Er 35
This error code has priority
over Hi P1.
Chiller will shut down.
Process pressure (P1)
exceeded factory preset value
for greater than 30 seconds.
Preset Values:
T0, T1 and T5- 105 psi
P1 and P2 - 105 psi
P3 60 Hz - 48 psi
P3 50 Hz - 32 psi
P4 60 Hz - 85 psi
P4 50 Hz - 60 psi
P5 60 Hz - 87 psi
P5 50 Hz - 56 psi
• Check application valves and ensure that they have not changed
or been closed. Note If routine shut-off of the process ow is
required then an external pressure regulator accessory should be
added - contact Thermo Fisher.
•May occur as a result of changing the internal DI cartridge.
Disconnecting the cartridge adds an additional 0.5 GPM to the
main ow, see Section 5.
•Check for debris in the application or clogged external lters.
• Double check uid lines. Excessive bends, long tubing and
diameter reductions can affect the pump’s discharge pressure.
Note If diameter reductions must be made, they should be made
at the inlet and outlet of your application, not the chiller.
Er 36
This error code has priority
over Lo P1.
Chiller will shut down.
Process pressure (P1) below
factory preset limit of 2 psi (all
pumps) for greater than 15
seconds.
Possible pump motor
overload.
•Ensure that the chiller reservoir is not too low.
• Chiller requires >2 PSIG application pressure drop. If a bypass
valve has been installed, some restriction may need to be added to
the bypass line.
•Allow chiller to cool down